Tire-valve.



-TIRE VALVE.

APPucATloN FILED Mmmm Isls.

Patented June 26,

2 SHEEfI'S--SHEIITV I.

lNvENToR lnunulllnnnnninal E. v. MYERS.

-TIRE VALVE.

APPLlcATloN man MAR. 21. 191e.

Patented June 26, 1917.

LLM

2 SHEETS-SHEET 2.

INVENTUR By 21g/ghn unir entre .anni n en.

EUG-ENE V. MYERS, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO A. SCHRDERS SON,

INC., OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

TIRE-VALVE.

Specification f Letters Patent. tpgmgnedl Jun@ 226s 191%,

Application led March 21, 1916. Serial No. 85,633.

To all whom t may concern:

Be it known that I, EUGENE V. MYERS, a citizen ofthe United States of America,

' residing in East Orange, in the county of Essex and State .of New Jersey, have invented certain new and useful Improve- Inents in Tire-Valves, of which the following is a specification.

This invention relates to tire valves or similar devices and aims to provide certain improvements therein.

Valves for pneumatic tires usually comprise a long casing member commonly` called a valve stem which is provided with a bore from en d to end. The maximum diameter of such casings is limited due to the condition that the valve must pass through a hole in the vehicle rim, and such hole is limited in size. Hence the internal bore must necessarily be of small dimensions. In those constructions wherein the valve casing is provided with a reduced nipple at its inner end the diameter of this bore is still further limited.

Within the bore is usually located a valve seat and a valve plunger, together with a spring for' operating the plunger, and these parts are customarily made separately and inserted within the bore by screwing them in.

The valve casings as thus described have almost invariably been -made of brass owing to the factthat the valves in use are subjected to wet and moisture and would speedily rust if not formed of a non-rust ing metal. It is particularly desirable that the inner parts of the valve casing and particularly the port-ions near the inner end shall be rust-proof, since it is at these portions that the actual working parts of the valve are located. It h-as also been customary to nickel-plate the casings but it is found in -practice that the nickel-plating does not extend to any material extent into the bore of the valve casing.

The most expensive part of the valve is the casing and it materially increases the cost thereof to construct it of brass or other expensive non-corroding metal. The object of the present invention is to reduce the cost of the casing by forming it at least in part of steel or other cheap metal in such manner as to avoid the deleterious eHects of rust, particularly on the inner part of the casing.

lln the drawings I have shown a number of methods of accomplishing this result.

Referring to the drawings,-

Figure 1 is a view partly in diametrical section of one construction.

Fig. 1a is a cross section of a detail.

Fig. 2 is a sectional view of another construction.

Fig. 3 is a similar view of still another construction.

Fig. 4 is a similar view of a blank, partly made.

Fig. 5 isa similar section of the valve of Fig. 4 completed.

Fig. 6 is a section on the line 6 6 in Fig. 5. f

Fig. 7 is a section on the line 7 7.

Fig. 8 is a detailed View of the lower part of the casing, showing another feature of construction.

Figs. 9 to 18 show other forms of the invention.

Referring first to Fig. l, let A indicate the body of the casing, B its flanged foot,4

with a recess D designed to'receive the edges of the tire tube. lt is screw-threaded on its exterior at E to receive a rim nut, dust cap, etc. Extending through the casing A islaJ bore F which in the construction shown is enlarged at its upper end to receiveythe working parts of the valve. In the Ausual construction the upper end of the bore is interiorly screw-threaded at G, and immediately below the screw-threaded part is a tapered shoulder H which is adapted to engagerthe packing I of a valve seat member J. A plug K is provided which engages the screw-thread G and forces the packing I against the shoulder H. A lower shoulder L is usually provided to engage a rior o the casing.

With regard to the interior ofthe casing,

however, it is impossible by ordinary meth-I- ods'to protect the metal from rusting, since the'metal will not electrolytically depositinto the bore of the valve. The parts which must be particularly protected are the -Shoulder J, the thread G r and that part' of the bore which mainly receives' the valve insides are working parts. The valve cap and pump coupling (which are not shown) which are habitually and frequently used with pneumatic tires also render it difficult l to protect Vthe. exterior threadl P ofthe working parts of the valve.

nipple sufficiently by plating .methods to avoid wearing o and rusting.-

In the construction shown in Fig. l I' hence construct the valve casing in two parts, one the body A of the casing, whichl as, before stated is preferably of some cheap metal, and the other an insert Q which is of brass, copper, or other non-rusting metal.

The insert Q preferably contains all of the working parts, and is formed with a lnipple l C, so that no rusting is possible on the interior of the insert and the exterior and interior of the nipple. 5

The insert Q according to the present in- /vention is permanently attached to the body of the casing in such manner that the two parts constitute a single casing. It is to be clearly distinguished from those constructions 'in which 'adplug is provided for which carries the the valve casing an Such constructions are invariably used for the purpose of providing larger working parts of the valve, the valve lparts being introduced through the bottom of the plug. In order to gain access to the working arts in such 'constructions it is essential t at the plug .455

be removable, and ,this has introduced an element of weakness into such constructions which has never been overcome. A removable joint is constantly open to leakage, particularly on account of the torsional strain which is put upon the plug in screwing and unscrewing couplings, caps, etc. The invention shown in Flg. 1 is directed to that type of valve in which the valve insides are c removable through the top, and the. insert is a permanent a dl fixed part of the valve shell and conneciied toit with a leak-tight ]oint.

The union betlween the insert and the i 'body of the casing must be such as to prearound the joint.

vent displacementby pressure and leakage The insert may be, for instance, soldered to the valve body, or it may be screwed in with such force as to bring contacting shoulders into contact so intimately as to prevent fleakage.v such case-s the conf .tacting parts may i be tapered or tapered Shoulders may be formed thereon.

on the insert and turn a flange, such as S,

over the top of it, in order to avoid any possibility of dislodgment. Such a construction will also resist the ordinary tor sional strains ofscrewing and unscrewing the cap and pump coupling, but if desired non-circular surfaces may be formed on the insert and valve body as shown in Fig. l@l

where the shoulderR is' olygonal and the top of the bore of the odyis similarly formed to provide an'additional safeguard against turning or an other suitable mode may be employed for 'his purpose. If desired also the insert may be slightly tapered and the bore correspondingly tapered.

By this construction I secure in effect a valve having' thesame ru'st-resistingproperties as a brass' valve at those points where it is essential that theseproperties shall bev present. At the same time the cost of construction is greatly reduced, since the weight of ymetal used in the brass insert is comparatively small in proportion to the'total weight of' the valve body. As thus constructed the valve in-appearance is similar to an ordinary brass valve. It may be vnickeled when completed or coated on its ex# terior, as may be desired.

Fig. 2 shows a similarv construction except that the bore F is protected by a sleeve T of 'some rust-resisting material, Such as brass, lead, or the like. The sleeve may have a shoulder `T at its bottom designed to rest against` a similar shoulder T2 formed on the interior of the shell. As the function of this sleeve is only to prevent rusting of the bore, no special pains need be taken to provide a leak-tight joint between -the sleeve and the casing.

In Fig. 3 the construction is similar except that the insert Q2 is provided with an integral sleeve T3. In this construction a flange T4 may be formed at the lower end of the casing. In this construction if a line of lsolder is made between the end of the sleeve and the foot B, or other means be adopted at the foot to secure a leak-tight joint,'the fit of the insert and sleeve need not be precise. In such construction, particularly if the flange S at the top of the I have foundin practice that the parts can casngvis of suiicient strength to mechsmA au only be such as to prevent the leakage of air between the insert and the casing.

In Figs. 4 and 5 I have shown a valve body A3 formed of steel, iron or the like, which valve body has a nipple C3 at its top formed integrally of thesame metal. The bore in this case may be filled with arustproof material such as solder, zinc, or the like, suitable fluxes being used if necessary to secure an adherence of the zinc plug to the steel. The valve is then bored out 'to make its various internal threads, seats, etc.,` as shown in Fig. 5. Such constructlon provides a valve casing which is lined throughout with a rust=proof material.

In Fig. 8 is shown a construction in which a brass or other rust-resisting foot BB is employed. In `this case the brass foot is preferably provided with a collar B and the casing is provided with an integral sleeve B10 passing through the collar and upseton the under side of the foot.l The line of solder may\ be employed at B11 Vand the parts may be forced together'with a leak-tight joint.

In the constructions of Figs. 1, 2 and 3 the insert may be united to the body of the shell before the drilling, seat-forming operations and screwethre'ading operations are performed on the insert, or these may be done prior tothe insertion.

i Another method of constructing the insert is to provide a series of molds or formers of the correct interior Vshape of thevalve casing and electrically deposit copper or of such formers,

other metal on theoutside thereby obtaining an insert 'or sleeve of proper internal contour, the valve body be' ing formed with an internal contour similar to the external con-tour of the insert or sleeve. The formers or cores may be then removed (or if made of paraffin or the like may be melted out), andthe insert or sleeve placedwithin the valve bodyand secured by upsetting one or more parts, or by soldering,

e or by other suitable methods.

In Fig. 9 I have illustrated another construction of insert having a iange Q (preferably a plurality of them) which are de- Siend flanges on the steelvalve body. As the plug is forced in under pressure, these flanges are bent 'back and not only secure av mechanical joint but an air-tight joint between the parts.`

Another method of securing the insert in place is to provide -a screw-thread fon the interior ofthe valve body and a corresponding thread on the plug and screw the parts so tightly together as to cause thebody to wear a seat on the plug. When the parts are j in this condition a iiangesimilar to S may be turned over the insert so that it cannot unscrew. In performing such an operation to contact with similar internal4 sides is desired and the -a screw-thread, the shell j In either of these operations a tapered seat lar face on the insert.

In Fig. 10 I have shown a form of valve in which-the partU isconstru'cted of brass, for instance, and the part V of iron or steel. In this construction the part U may be formed of a piece of rod and` bored fo'r a may be formed in the valve body and a simicertain portion of its length,'and the part V formed of a headed plug of steel. The parts may be screwed together as shown at W and preferably the part U is turned over the part V at the bottom, as shown at U. Along the iats of the valve the part U may be indented to assist against relative rotative movement. It is preferred to use a packing ring V at the upper portion of the part V and also a second packing ring V2 at the lower portion. Both of these packings may be made of lead or other soft metal, and thereby prevent any leakage between the parts. 'y i.

In Fig. 11 the construction is similar except that the part V3 extends farther up into the part U2; below the seat. Packings are used which are similar to lthose shown in Fig. 10. j In the construction of Fig. 10 the valve chamber, seat and nipple are formed of brass, and in Fig. 11 the seat and nipple are l`11 except that the outer part 2O is formed asa drawn shell or tubing of brass.

shell includes the nipple and preferably alsoI This the seat'21. Within theshell is located a vplug 22 of steel which has a screw-threaded connection with the shellpas shown, the parts being preferably packed as in Fig. 10. In

ythe constructions of Figs. 10 and' 11 the saving inmetal is partly"due to the recovery of the turnings. In Fig. 12 the'saving is due to the use of a less weight of brass.

In this figure if a valve with flattened parts are united by 20 is drawn around and the part 22 is formed with liattened sides, the screw-threaded portion of the part 22 being thereby mutilated. After the parts are united, the shell 20 is compressed onto the, Hats of Jthe part 22. 0r if a screwthreaded joint is not desired, both parts may be formed with flattened sides. a thickdrawn Vshell is used, the ats may be cut from the shell as is now customary with solid .brass valves.I

In Fig. 13 I have shown a similar conas shown itextends just f either be formed separately and united, as

in Fig. 8, or in any other suitablemannei, or it may be formed integrally by a-series of drawing or pressin operations.

In Fig. 14 I havepiustrated a'construc# jtion in which the seat 27, valve' chamber 28 and spring holder seat 29 are formedv directlyv from the-"metal of the shell 30, the whole construction being preferably drawn .from brasse/The various constricted diamevv ters andseats may be formed by pressing or rolling-v operations on the exterior, of the shell.

, l In Fig. 15 I have illustrated a valve Shell 'having a steel or other metal core 40 and a surrounding shell 41 of brass or other rustproof material. Inthis gure the metal c ore extends to a point indicated lat 42, and the f shell'41 extends upwardly therefrom to include the nipple 43 and seat 44.

In this construction, therefore, the'body of the nippleand its threads and seat are of non-rusting metal. This construction is best formed by electroplating thel core with a non-rusting metal. In practising this 'proc- 45 of the appropriate internal shape of the ess the'core 4 0 is first provided with a plug nipple and upper part of the valve casing.

' the plating process.

The core is formed 4'of a material, such as paraiiin, or lead, which c'an'be removed after The .combined structure is then put into an electro-plating bath,

and a coating which is suciently thick to 'give the necessary strength of metal for the ,nipple is then deposited on thecore and plug. The plug is then melted or dissolved,

and on'its int nipple, threa lor will have the appropriate and seat. The exterior can then be finished and threaded.

l In Figs.- 17.Hand18- a similarfconstruction is vshown except that the plating 50 von the 'core 51 is thinner. 'This construction is best made' by the use of a and core may be first' plated to 'obtainthe necessary thickness for the coating 50, whereupon Athe 'coated structure may be then immersed`to,letjus say, the pointifin a non` plating 'l quid which lhslrderlssutzh as par- -afiinv or t e like, and asecond plating operation the performed to build up 'the thickness .of vof the 'deposited coating, it-may be treated with a etal from the point 53 to the to'p cases is used which will not take an ele troplug 52. The plug 'pple If aplugin either of these body with a coplper or nickel coating, the

following metho s maybe adopted according .to my invention:A

A steel valve body is constructed with proper passages, screw-threads, etc., and it nis mounted in an electrolytic bath over but separated from .a-pin which constitutes the anode. This pin penetrating within the bore, will electroplate the same. If it is desired to electroplate the bore with nickel, a nickel anode pin will naturally be chosen. If it i s to be electroplated with another metal, the appropriate metal will'be chosen.

Another method of electroplating the internal boresv of the valve is to produce a veryrapid circulation of the electrolytlc :Huid through the bores. It is preferable that the electrolyte during this operation pass only through the bores rather than vthrough the bores and around the exterlors of the casings. Fonthis purpose the valves may be mounted` in a partition, and the electrolyte being set inmotion can only pass through the partition by passing through the valve bores. A second partition may be 'arranged at the opposite ends of the valves so that the electrolyte does not come in conf tact with the -exteriors f the shells either 'j before or after passing through the bores. This partition or partitions may be arranged in the' electrolytic vat and the circulation may be produced by a pump, or by \or other rust-proof metal cast within it.

In Figs. 10 and 11 the rust-proof metal may be cast uponthe shell, as also in the case of Fig..12. In Fig. 13 the shell may be cast either with or withouttheguide, 'and the neck` 25` afterward rolled or swaged in. In --Fig. 14y 'asimilar operation maybe perfor'med. j In Figs. 15 to 18 a steel casting isA made around ,thev steel member.- In these'A 'gures the plugs `corres'pending. to 45, 52

should be so formed that they can he relmoved bodily after the casting operation.

' While I have-shown and described a number of fcrms of the invention, it will be unders'tood that I do not wish to be limited y thereto since various changes may be made I therein vwithout departing from the invenweies ner to produce the result required.

I do not herein specifically claim the method involved in the construction of Figs. l to 3, 8 and 9 as this forms the subjectmatter of a` divisional application filed May 22, 1917, Serial No. 170,179; nor do 1 claim the specific constructions of Figs. 4 to 8 and .l0 to 18, nor the methods therein involved,

since these form the subject-matter of a divisional application tiled May 21, 1917 Serial No. 169,846.

What 1 claim is I 1. A composite valve shell for motor vehicle tires formed to permit the introduction of a check mechanism into its outer end, and its removal therefrom, and said shell formed with a body portion of strong, rigid and cheap metal, such as iron or steel, and an end part of rust-resisting metal, such as brass, said two parts being united with a permanent joint to provide a unitary structure which is substantially integral, said joint being leak-tight and non-rotative under all conditions of use.

2. A composite valve shell for motor vehicle tires 'formed to permit the introduction of a check mechanism into its outer end, and its removal therefrom, and said shell formed with abody portion of strong, rigid and cheap metal, such as iron or steel, and a plug of rust-resisting material, such'as brass, entering ,the outer end of the shell, and said two parts being united with a permanent joint to provide a unitary structure which is substantially integral, said joint being leaktight and non-rotative under all vconditions ofl use.

3. A com osite valve shell f'or motor vehicle tires formed to permit the introduction of a check mechanism into its outer end, and itsI removal therefrom, and said shell formed with a body portion of strong, rigid and cheap metal, such as iron or steel, and a plug of rust-resisting material, such as brass, entering the puter end of the shell, and said plug bemg formed with a passage having an internal screw thread and a shoulder below said thread, and said two parts being united with a permanent joint to provide a unitar structure which is substantially integral, said joint .being leak-tight and non-rotative under all conditions of use.

4. A- composite valve shell for` motorvehicle tires formed lto permit the introduction of a' check mechanism into its outer end,

. and-its removal therefrom, 'and said shell formed with a body portion of strong, rigid and cheap metal, such as iron or steel, and a plug of rust-resistmg material, 'such as `brass, l entering the outer end of the shell, and; said plug bemg formed with a passage having an internal screw-thread and a shoulder belowsaid thread, anda valve chamber below/said for positively shoulder, said two parts being united with a permanent joint to provide a unitary structure which is substantially integral, said joint being leak-.tight and non-rotative under all conditions of use.

5. A composite valve shell for motor veliicle tires formed to permit the introduction. of a check mechanism into its outer end, and its removal therefrom, and said shell formed with an externally threaded body portion of strong, rigid and cheap metal, such as iron or steel, and a plug of rust-resisting metal, such as brass, said two parts being united with a permanent metallic joint to provide a unitary structure which is substantially integral, said joint being leaktight and non-rotative under all conditions of use.

6. A composite valve shell for motor vehicle tires formed to permit the introduction of a check mechanism into its outer end, and its removal therefrom, and said shell formed with an externally threaded body portion of strong, rigid and cheap metal,such as iron or steel, and a plug of rust-resisting metal, such as brass, said two parts being/ in permanent leak-tight surface contact to provide a unitary structure which is substantially integral, said joint bein leak-tight and nonrotative under all con( itions of use.

l7. A composite valve shell comprising an iron or steel body member having a foot or shoe at its inner end, a threaded exterior7 and a bore in its outer end, and a plug of rust-resisting met-al in said bore and extendling beyond the body to form a nipple of reunitary structure which is substantially in tegral, the valve having a check mechanism which is removable without disturbing the Joint. y

,8. A composite valve shell comprising an iron or steel body member having a foot or shoe at its inner end, a threaded exterior. and a bore in its outer end` and a plug of rust-resisting metal in said bore and extending beyond the body to form a nipple of reduced dlameter, said [plug being formed with a bore having an internal screw-thread and having a metal to metal leak-tight joint with the body to provide a unitary structure which issubstantially integral, and means preventing relative rotation of said parts.

" v9. A composite valve shell for motor ve hicle tires formed with a body portion of strong and rigid oxidizing -material, such as iron or steel, and an end part of rust-resisting material, such as brass, one of said parts being provided with a bore, and the .other being adapted to enter said bore, the

metals themselves 'forming a permanent,

non-,rotative leaktight joint .between said,

parts to provide a unitary structure; A 10. A composite valve shell for'm'otor vei hiel@ tires formed with 'a bodyportien" of strong and rigid oxidizing material,such as iron or steel, and an end part of rust-resistl lng material, such as brass, one of said parts being'pr'ovided with a bore and-.the

other being adapted to e'nter saidv bore, said parts being unthreadedand being forced fone into the other to provide a permanent,

. rigid metal, said shell being formed to permit the introduction of acheck-mechanism intofits .outer end and its removal therefrom', and said shell formed with an eXter` nally threaded body portion of strongand rigid material, such as iron-or steel, and a plug ofLL rust-resisting `matcrial, such as brass, insertedwithin the outer end of said body portion and forming a nipple eXtending beyond the outer end of said body portion, said plug having an internal thread, a 'shoulder below saidthread', anda valve forced Within said body portion, the metals ofthe two parts forming a permanent, leaktight joint whereby/to provide a sub- .stantially integral and unitary structure,

,at itsinner end 4and being constructed of tending beyond the. outer end of said body.

,rigid metal, said shell being formed to permit the introduction of a' checkimecha-4 n ism into its outer end and its removalv therefrom, .'andsaid shell formedv with an externally threaded body portion of strong n and rlgid material, such as iron or steel,v

andia -plug of rust-resisting material, vsuch as' brass, inserted Withinv the outer end ofv said body portion and forming a nipple exportion, said. plug' having an internal th're a .d,'a shoulder below said thread, and a valve chamber below said shoulder, and be'- ingforced within 'said body portion, the

shell for motor vef scribing witnesses.

metals'fofythe two .parts forming a'lpermanent', "leak-tight joint whereby to provide Ya .j

itsv outer ends'yhaving an insert of 'rust-re-v "sisting metal in said bore, said insert bein' ,formedgwith a lbore having an interna screw-thread and aishoulder belowl said screw-thread, and one of said parts having Aa series of rldges, and said lnsert forced into said bore .to form a metal/y to metal leak-tight joint with the body to provVide apunitary structure which is substantially integral.-

-an iron or-steel member having. a bore at;

eing

14. 'A composite valve shell comprising ali` iron or steel member having a bore atits outer end havingan insert of rust-resisting metal insaid bore, said insert being kformed with a bore having an internal screwthread and a shoulder -below said screw-thread,

and said body having a series of ridges in said bore, and. said insert being forced into said boreto forma metal to metal leak-tight joint with 'the body to provide a unitary structure which is substantially integral. chamber below said. shoulder, )and being 15. A composite valve shell -for motor vehicle tires formed to permit the introduction of a check'mechanism into its outer end, and its removal therefrom, and said rust-resisting material held` between said plug and the bottom of said body portion.

j -In witness whereof, I have hereunto slgned my -name in the presence of 'EUGENEV MYERS.

Witnesses:

THOMAS F. WAILAGE, GRACE GUNDERMAN.

vshell formed with a'body portion of strong, 1 i 12; A composite valve shell, for motor Vehicle tireshaving'a clamping foot or shoe 

